:root{--bg: #11141a;--surface: #1a1f28;--border: #2c3442;--text: #e8ecf2;--muted: #9aa5b5;--accent: #4f8cff;--danger: #e5484d;--ok: #35c18f;--radius: 8px;font-family:system-ui,-apple-system,Segoe UI,Roboto,Noto Sans,Noto Sans SC,sans-serif;color-scheme:dark}:root[data-theme=light]{--bg: #f5f7fa;--surface: #ffffff;--border: #d5dbe3;--text: #17202c;--muted: #5b6676;--accent: #1f5fd1;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--accent)}:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:8px;z-index:10;background:var(--surface);padding:8px 12px}.shell{display:grid;grid-template-columns:220px 1fr;grid-template-rows:auto 1fr;min-height:100vh}.topbar{grid-column:1 / -1;display:flex;justify-content:space-between;align-items:center;padding:10px 20px;border-bottom:1px solid var(--border);background:var(--surface)}.topbar-right{display:flex;gap:12px;align-items:center}.brand{font-weight:700;font-size:18px}.sidebar{border-right:1px solid var(--border);padding:12px}.sidebar ul{list-style:none;margin:0;padding:0}.sidebar a{display:block;padding:7px 10px;border-radius:var(--radius);color:var(--text);text-decoration:none}.sidebar a.active{background:color-mix(in srgb,var(--accent) 20%,transparent);font-weight:600}.nav-heading{font-size:12px;text-transform:uppercase;color:var(--muted);margin:16px 10px 4px}.content{padding:20px 28px;max-width:1200px;width:100%}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin:12px 0}.card-list{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.form{display:flex;flex-direction:column;gap:12px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.span-2{grid-column:1 / -1}label{display:flex;flex-direction:column;gap:4px;font-size:14px}fieldset label,.track label{flex-direction:row;align-items:center;gap:6px}input,select,textarea{font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:7px 9px}button,.button{font:inherit;background:var(--accent);color:#fff;border:none;border-radius:6px;padding:8px 14px;cursor:pointer;text-decoration:none;display:inline-block}button.secondary,.button.secondary{background:transparent;color:var(--text);border:1px solid var(--border)}button.danger{background:var(--danger)}button:disabled{opacity:.5;cursor:not-allowed}.actions,.filters,.inline-form{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end;margin:10px 0}.page-header{display:flex;justify-content:space-between;align-items:center;gap:12px}table{width:100%;border-collapse:collapse;margin:8px 0}th,td{text-align:left;padding:8px;border-bottom:1px solid var(--border);vertical-align:top}.muted{color:var(--muted)}.alert{padding:10px 12px;border-radius:6px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}.alert-error{background:color-mix(in srgb,var(--danger) 18%,transparent)}.alert-ok{background:color-mix(in srgb,var(--ok) 18%,transparent)}.badge{font-size:12px;background:var(--accent);color:#fff;border-radius:10px;padding:1px 8px}.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}.stat-value{font-size:26px;font-weight:700}.stat-label{color:var(--muted);font-size:13px}.chart-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:12px}.chart figcaption{font-weight:600;margin-bottom:8px}.auth-page{min-height:100vh;display:grid;place-items:center;padding:16px}.auth-card{width:min(420px,100%)}.auth-header{display:flex;justify-content:space-between;align-items:center}.sso{display:flex;flex-direction:column;gap:8px}.divider{text-align:center;color:var(--muted)}.tracks{display:grid;grid-template-columns:1fr 1fr;gap:16px}.controls{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:12px}.controls label{flex-direction:row;align-items:center}.transcript{min-height:160px;max-height:420px;overflow-y:auto}.turn{padding:4px 0}.turn-action{color:var(--muted)}.graph{width:100%;max-height:360px;color:var(--text)}.graph .node{fill:var(--surface);stroke:var(--accent)}.graph text{fill:var(--text)}.details-grid{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px}.details-grid dd{margin:0}.swagger-container{background:#fff;border-radius:var(--radius)}@media (max-width: 760px){.shell{grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--border)}.sidebar ul{display:flex;flex-wrap:wrap;gap:4px}.grid-2,.tracks{grid-template-columns:1fr}}